Moog ladder filter vs Wah Wah pedal filter

[Matthew S. Padden]

Hi..

Crebble wrote:

>      I've been playing with the idea of replacing the inards of my Wah 
>Wah
>pedal with the Moog ladder filter, and mabey having a LFO in there aswell. 
>I'm
>a bit new to electronics so thought this would be a good project to get 
>started
>with.

>
> ( no eponential conversion or temp comp needed as it will all be
>controlled by log pots).
>

Not sure about that bit...!

>
>I was hoping somebody could tell me if its worth while, would it sound 
>better
>than the pedal filter? The pedal filter is quite simple an inductor, three
>transistors and a sprinkeling of capacitors and resistors. Its actualy a 
>Dunlop Crybaby if anyone knows it.
>

The Crybaby (along with most other wah pedals) is a high-Q bandpass filter, 
whereas the Moog is a lowpass filter. I'm not sure that it would sound 
'better' than the Crybaby's own filter; that would depend a lot on what you 
were planning to put through it.
	My suggestion would be perhaps to build a separate foot pedal containing 
the Moog filter, or even just build the cct in a normal box so you can try 
it out; I don't think it's really worth gutting the Crybaby unless you 
_really_ don't like the sound.
 
>
>Has anyone tried a giutar though this filter?
>

Through the Moog? No.

But don't gut the Crybaby unless you really have to....(please!) :)
--
Matthew S. Padden
Computer Music Research Group
Room M2/08, Music Dept.
Huddersfield University
Queensgate
Huddersfield
England HD1 3DH
p: +44 1484 422288 x2402
f: +44 1484 472656
e: mattp at mindless.com
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